Look at context clues in your sources
Eliezer is more than just a traditional protagonist; his direct experience is the entire substance of Night. He tells his story in a highly subjective, first-person, autobiographical voice, and, as a result, we get an intimate, personal account of the Holocaust through direct descriptive language
I've always been taught that revising involves checking for spelling, punctuation, and grammar. Basically any kind of improvements. Is this one of those questions where you check all that apply? Revising also includes making sure you have stayed on topic and gives you the chance to remove things that may not really apply or add other things that may have been left out. It's where the writer truly polishes everything up.
I hope this helps.